William weiler



WILLIAMV WEILER, WASH'INGTONfNiEW JERSEY.

Lam Patent No. 80,579, aaa-z August 4, 1868.

IMPsovnD noon-DRILLING Maestre,

'dige Schnitte Infant tu in lgsse i-tritati atmt mit mating @mit at tigesame.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, WILLIAM WEILER, ,of WashingtonLNcw Jersey, haveinvented certain Improvements in Portable Rock-Drilling Machines; and Ido hereby declare the following to be a full, clear, and exactdescription of the same. Y

My invention relates to certain improvements in the rock-drillingmachine for which Letters Patent were granted to me on the 31st day ofMarch, 1868, and it consists- Firstly, of a driving-shaft, provded,yatits opposite ends, with wheels of equal diameter, upon which the machinecan be transported from place to place, the said driving-shaft beingarranged to slide longitudinally in its bearings, so that it may bethrown in or out of gear with the mechanism which operates the drill.

Secondly, of a yoke, so secured tothe. top of the frame of the machineas to afford a ready means of attach ment to the chain or rope by whichthe machine is'shif'ted from one p oint toanother.`

In order to enable others skilled in the art to make and use myinvention, I will now proceed to describe .its constructionandoperation, reference being had totheaceompanying drawing, which formsa part of this specification, and in which- F-igure l is a frontele'vation of suicient of a rock-drillingI machine to illustrate myimprovements.

Figure 2, a rear elevation of the same.

Figure 3, a sectional plan view on the line l-'2,

Figure 4, a plan view of Iig. 1, and

Figure' 5 a view of the machine when prepared for transportation.

Similar letters refer to similar parts throughout theseveral views.

The frame ofthe machine consists of a base, A, and of four: uprights, B,B1, B2, and B3, which project from the base, 'and arerseeurcd togetherat the top, and braced, throughout theirlcngth, by cross-pieces, a. i

Around each of the uprights, near to the top of' the same, passes ametal band, b, between the projecting ends of which is hung a'leg, C,somewhat longer thanfthe upright to which it is hinged, the lower endsof the legs projecting outwards from the frameof the machine, as clearlyshown in iig. 2. These legsrare hinged to the uprghts by pins, d, insuch a manner as to be' easily detachable therefrom, andthey afford aready means of supporting-the frame of the machine in any position inwhich it may be placed, enabling me to dispense with the inconvenientextended base ldescribed in my aforesaid patent of March 31,1868.

The driving-shaft D of the machine is arrangedto turn in suitablebearings,ff, of the opposite uprights B2 and B3, and to have a limitedlongitudinalmotion through the said bearings, for a purpose describedhereafter; and the said shaft'is provided with a cog-wheel, g, gearinginto asimilar Wheel,g, at one end of a shaft, E, which'also turns in theopposite uprights B2 and B3.

This'vshaft E is provided with band-wheels, the., (not shown in thedrawing, but fully described in my former pat-ena) by meansot' whichmot-ion is communicated to thc drill-rod and its appliances. i

Upon lthe opposite ends of thef driving-shaft are wheels, F F, of equaldiameter, which serve the twofold purpose of ily-wheels and as a meansof transporting the machine from 'place to place, when the latter isturnedV over'on to its side, as shown in iig. 5. Before thus turning theframe of the machine, however, it is necessary that two or more of thehinged legs C should be detached, which is readily done afterwithdrawing the pins d.

It is alsoy necessary, in order to prevent injury to the machinery, thatthe cog-whcelgof the driving-shaft shouldl he thrown ont of gear 'withthe wheel'g. This is donc by sliding the driving-shaft longitudinally'inits bearings to the position shown intigs, l and 4, and the shaftismaitained either in this, or in'itsformer position, by means of a pin,z', which passes through a. staple, z", secured to the cross-piece a',and bears against one side or the other of a. collar, j, ofthe shaft. Insome instances, however, the shaft E, or one-of the c0g-wheels g g', maybe arranged to slide laterally, instead of the shaft D.

A yoke, G, which is secured to the top of the frame of the machine,affords a ready means of attachment'V to aerane, whenit is desired tolift and move the machine from one point tc another in the quarry, or ofattach?.

ingitftoateainforwagon' when it is to be moved from place to place.

In my aforesaid patent .of March 31, 1868, the drillrod L was guided byand arranged to slide vertically through plates secured to the oppositeuprghts B and B1. These 'Iplates, however, were not adapted to drillrods of different lengths, as they could not be adjusted towards or fromeach other vertically, an objection which I obviate, in the presentinstance, by constructing the upper guide in tivo pieces, laandlc, whichpass partly around, and embrace the uprights, as shown in iig. 3, andwhich can 'be adjusted and secured in any position on the said uprights,according to the length of the drill-rod, by means of tightening-screwsl Z.

By means of the above improvements I increase the portability andutility of my rock-drilling machine without materially adding to itsexpense. l l

I claim as my invention1 and desire to secure by Letters Patent- 1.r Thedriving-shaft D, carrying at the opposite ends wheels F and F', andarranged'on the frame of the machine, substantially as and for thepurpose described. l

2. The yoke Gr, secured to the top of the frame of the machine, for thepurpose specified.

In testimony whereof, I have signed my name to this specification in thepresence of two subscribing witnesses.

WM. WEILER. Witnesses:

WM. G. DUFFoRD, JAMES I. HEMEL.

